Preparation and characterization of activated carbon from wild olive cores (oleaster) by H3PO4 for the removal of Basic Red 46
| Autor: | Salim Boumaza, Farida Kaouah, Mohamed Trari, Tarek Berrama, Zoubida Bendjama |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Langmuir
Renewable Energy Sustainability and the Environment Strategy and Management Analytical chemistry Langmuir adsorption model chemistry.chemical_element Industrial and Manufacturing Engineering symbols.namesake Adsorption chemistry symbols medicine Freundlich equation Point of zero charge Fourier transform infrared spectroscopy Carbon General Environmental Science Activated carbon medicine.drug |
| Zdroj: | Journal of Cleaner Production. 54:296-306 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2013.04.038 |
| Popis: | The wild olive cores (WOC) are an agricultural by-product, which contributes to large quantities of squander to the environment in oleocole season in Algeria. The present study consists of the preparation of activated carbon from WOC ( oleaster ) activated chemically by H 3 PO 4 (AC-WOC) for the adsorption of Basic Red 46 (BR 46) in aqueous medium. AC-WOC is characterized by Scanning Electron Microscopy (SEM), Fourier Transform Infrared (FTIR), Energy Dispersive X-ray (EDX), BET measurement while the physicochemical parameters are calculated through the iodine number and the point of zero charge (pH PZC ). Batch adsorption experiments are performed as a function of the initial BR 46 concentration, carbon dosage, pH and temperature. The results reveal a fast kinetic with an equilibrium time of 60 min. The adsorption follows a pseudo-second-order kinetic and the data are fitted to the Langmuir, Freundlich and Temkin isotherms. The Langmuir model provides the best fit and the adsorption capacity increases with increasing the carbon dosage, a maximal value of 781.25 mg g −1 is obtained for AC-WOC dosage 1 g L −1 . |
| Databáze: | OpenAIRE |
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